EP1443846A1 - Dispositif a charniere a ressorts equilibreur a mouvement vertical pour porte - Google Patents

Dispositif a charniere a ressorts equilibreur a mouvement vertical pour porte

Info

Publication number
EP1443846A1
EP1443846A1 EP02783362A EP02783362A EP1443846A1 EP 1443846 A1 EP1443846 A1 EP 1443846A1 EP 02783362 A EP02783362 A EP 02783362A EP 02783362 A EP02783362 A EP 02783362A EP 1443846 A1 EP1443846 A1 EP 1443846A1
Authority
EP
European Patent Office
Prior art keywords
rocker arm
door
connection
correspondence
fixed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02783362A
Other languages
German (de)
English (en)
Other versions
EP1443846B1 (fr
Inventor
Ermes Degli Esposti
Eros Gherardi
Teresa Ghedini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CMI SRL
Original Assignee
CMI SRL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CMI SRL filed Critical CMI SRL
Publication of EP1443846A1 publication Critical patent/EP1443846A1/fr
Application granted granted Critical
Publication of EP1443846B1 publication Critical patent/EP1443846B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
    • E05F1/1269—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring
    • E05F1/1276—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring for counterbalancing
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door
    • A47L15/4261—Connections of the door to the casing, e.g. door hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/304—Application of doors, windows, wings or fittings thereof for domestic appliances for dishwashers

Definitions

  • the present invention relates to mechanical component for appliances, white goods and the like; particularly the present invention concerns a counterbalanced hinge device with vertical movement for a door of white goods such as dishwashing machine, washer machines or the like or appliances for private and industrial use.
  • the doors are connected to the structure of the corresponding appliances by means of known hinge device allowing the rotation of said doors between a closing position, in which the door is almost vertical, and an opening position, by rotating around an horizontal axis positioned in the appliance lower portion.
  • Some types of known devices can translate their rotation axes, in order to avoid interferences between door and appliance elements to which are assembled.
  • Said devices can further include elastic means fit for counterbalancing, that is the hinge capacity to hold the door, eventually loaded by the previously unknown weight of a panel assembled during the appliance installation, in any intermediate position between the closing and the opening positions.
  • the main drawback of said known device consists in that the means fit for counterbalancing frequently cause irregular door movements, too hard or too yielding and very noisy, and furthermore sudden blocks or clog of the door, particularly in correspondence of quick movements.
  • the main object of the present invention is to propose a counterbalanced hinge device with vertical movement for door household electrical appliances and the like, fit for counterbalancing said door, countering its weight and allowing to block this latter in any extreme and intermediate position, with smooth and silent operation.
  • Further object is to propose a hinge device fit for counterbalancing doors having weight varying in an interval of several kilograms.
  • Another object of the invention is to propose a hinge device having great constructive simplicity and small encumbrance, and economically convenient as well.
  • figure 1 shows a schematic and partial side view of the hinge device object of the present invention in a closing condition
  • figure 2 shows a view of the figure 1 device in a partial opening condition
  • - figure 3 shows a view of the figure 1 device in a full opening condition
  • figure 4 shows a view of a variant of the figure 1 device in a closing and partial opening condition and in which some elements have been removed for better underlining others.
  • two hinge devices of the type here described which are assembled, for instance, in correspondence of the two lower corners of the opening, to be closed by the door, in such a way that the door may rotate around axes parallel to the line, joining the two hinge devices.
  • numeral 1 indicates a counterbalanced hinge device with vertical movement for an appliance door constituted essentially by connection means 2, support means 3, balancing means 11, a rocker arm 4 and linkage means 20.
  • connection means 2 allow the fixing to the appliance body, while the support means 3 connect the device 1 to an appliance door.
  • the rocker arm 4 is hinged to the connection means 2 and is connected to the support means 3.
  • the linkage means 20 are connected to the connection means 2, to the support means 3 and to the balancing means 11 and they have a middle portion 15 for sliding mating a shaped portion 7 of the rocker arm 4, opposed to the connection with the support mean 3 with respect to the connection of said rocker arm 4 to the connection means 2.
  • the linkage means 20 substantially consist of a connecting rod 5 having the end rotatably connected respectively to the connection means 2 and to an end of a shaped lever 6, whose remaining end is fixed to the support mean 3.
  • the linkage means 20 further include a cam mean 8 fixed to the balancing means 11 and rotatably connected to the connecting rod 5, fit to slidably contact the shaped lever 6, in the passage of the device 1 from the closing condition C to the full opening condition A and vice versa.
  • the contact between the cam means 8 and the lever 6 is made by the sliding contact between a section portion 16, carried out in the cam means 8 and a corresponding section 17, carried out on the shaped lever 6, in correspondence of the connection of the latter to the connecting rod 5.
  • the rocker arm 4 includes at least a first insert 9, fixed in correspondence of the shaped portion 7, and that the shaped lever 6 includes at least a second insert 10, fixed in correspondence of the median portion 15.
  • Said inserts, first 9 and second 10, are made of synthetic material with a predetermined friction coefficient and can be removably or irremovably fixed to the rocker arm 4 and to the lever 6, respectively.
  • the balancing means 11 are constituted by one or more springs reacting in extension or compression.
  • the connection mean 2 has a wall 13 provided with a folded portion to match the connecting rod 5, in correspondence of the full opening condition A.
  • the end of the shaped lever 6 is fixed to the support means 3 has a hook shape in such way to removably engage a corresponding pivot 12, fixed to the support mean 3.
  • Such connection allows a quick door assemblage and disassembling, for instance in case of maintenance.
  • the operation of the hinge device 1 provides that the linkage means 20 transmit to the support means 3 a counterbalancing force sufficient to balance the door in its movement from the closing condition C to the full opening condition A and vice versa, allowing in this way to firmly stop said door in any position.
  • the sliding stop between the median portion 15 of the shaped lever 6 and the shaped portion 7 of the rocker arm 4 causes, during the movement of the lever 6, a rotation of the rocker arm 4 and the consequent vertical movement of the appliance door in correspondence of the passage from the closing condition C to the opening condition A and vice versa.
  • the door is in the lower position in correspondence of the closing C and opening A conditions, and progressively raises in the passage from one of these last two conditions to the other one, up to reach a upper position, in correspondence of a partial opening condition B, beyond which said door lowers again.
  • FIG 4 it is shown a variant of the device object of the present invention which provides the presence of elastic means 14, constituted for instance by one or more springs reacting in extension or compression, connected to the connection mean 2 and jointed to the rocker arm 4.
  • elastic means 14 constituted for instance by one or more springs reacting in extension or compression
  • the operation of this variant differs substantially from the operation of the preferred embodiment because the presence of a contact force transmitted by the elastic means 14 to the rocker arm 4 and fit for maintaining always mutually in contact the median portion 15 and shaped portion 7, during the passage of the device 1 from the closing condition C to the opening condition A and vice versa.
  • the main advantage of the present invention is to provides a counterbalanced hinge device with vertical movement for door household electrical appliances and the like, fit for counterbalancing said door, countering its weight and allowing to block the latter in any extreme and intermediate position, with smooth and silent operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hinges (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

L'invention concerne un dispositif à charnière à ressort équilibreur à mouvement vertical destiné à une porte d'appareil, du type comprenant des moyens de raccord (2) pour le corps d'appareil, des moyens de support (3), permettant de fixer une porte d'appareil et des moyens d'équilibrage (11), reliés aux moyens de raccord (2). Ledit dispositif comprend: un culbuteur (4) articulé à des moyens de raccord (2) et relié aux moyens de support (3) ; des moyens de liaison (20) reliés aux moyens de raccord (2), aux moyens de support (3) et aux moyens d'équilibrage (11) et présentant une partie médiane (15) permettant d'accoupler de manière coulissante une partie profilée (7) du culbuteur (4). Les moyens de liaison (20) sont conçus pour transmettre aux moyens de support (3) une force d'équilibrage de la porte, entre un état de fermeture (C) et un état de grande ouverture (A) et vice-versa. Le contact coulissant entre la partie médiane (15) et la partie profilée (7) induit en rotation du culbuteur (4) et un mouvement vertical de la porte d'appareil lors du passage de celle-ci de l'état de fermeture à l'état d'ouverture (A) et vice-versa.
EP02783362A 2001-11-06 2002-11-05 Dispositif a charniere a ressorts equilibreur a mouvement vertical pour porte Expired - Lifetime EP1443846B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITBO20010674 ITBO20010674A1 (it) 2001-11-06 2001-11-06 Dispositivo a cerniera controbilanciata con spostamento verticale perun portello
ITBO20010674 2001-11-06
PCT/IB2002/004633 WO2003039322A1 (fr) 2001-11-06 2002-11-05 Dispositif a charniere a ressorts equilibreur a mouvement vertical pour porte

Publications (2)

Publication Number Publication Date
EP1443846A1 true EP1443846A1 (fr) 2004-08-11
EP1443846B1 EP1443846B1 (fr) 2005-04-13

Family

ID=11439672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02783362A Expired - Lifetime EP1443846B1 (fr) 2001-11-06 2002-11-05 Dispositif a charniere a ressorts equilibreur a mouvement vertical pour porte

Country Status (5)

Country Link
EP (1) EP1443846B1 (fr)
DE (1) DE60203732T2 (fr)
ES (1) ES2238619T3 (fr)
IT (1) ITBO20010674A1 (fr)
WO (1) WO2003039322A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE303747T1 (de) * 2003-07-28 2005-09-15 Bonferraro Spa Eingebautes haushaltsgerät mit vorderen schönheitspaneelen
ITBO20030592A1 (it) 2003-10-13 2005-04-14 Cmi Srl Dispositivo di bilanciamento per un portello di un elettrodomestico.
IT1395507B1 (it) * 2009-07-24 2012-09-28 Brera Cerniera per il portello di apparecchi elettrodomestici, particolarmente per l'incernieramento del portello di lavastoviglie.
US9072422B2 (en) 2012-01-30 2015-07-07 General Electric Company Dishwasher appliance with a detachable door

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446693A (en) * 1942-01-05 1948-08-10 Harold G Davis Dishwashing machine
DE3618740A1 (de) * 1986-06-04 1987-12-10 Bosch Siemens Hausgeraete Tuerscharnier mit gewichtsausgleich fuer haushaltgeraete, insb. fuer geschirrspuelmaschinen
IT1235584B (it) * 1989-09-06 1992-09-11 C M I Cerniere Meccaniche Indu Cerniera per l'apertura e chiusura semiautomatica di portelli particolarmente indicata per portelli frontali ad articolazione ad asse orizzontale di lavastoviglie
IT1274837B (it) * 1994-07-15 1997-07-25 Cmi Srl Sistema di controbilanciamento con registro dell'azione controbilanciante per cerniere, particolarmente indicato per cerniere ad asse di articolazione orizzontale per elettrodomestici.
IT236891Y1 (it) * 1995-05-23 2000-08-31 Faringosi Hinges Srl Cerniera ad asse di rotazione mobile particolarmente per sportellipannellati di macchine lavastoviglie da incasso
IT1290683B1 (it) * 1997-02-17 1998-12-10 Cmi Srl Dispositivo di cerniera in particolare per il portello di apparecchi elettrodomestici e simili, con spostamento verso l'alto e verso
DE69708589T2 (de) * 1997-02-17 2002-07-25 Nuova Star S.P.A., Zola Predosa Vorrichtung zum Anlenken einer Tür, insbesondere einer Geschirrspülmaschinentür, an eine feste Struktur
EP0989273B1 (fr) * 1998-09-26 2004-01-02 V-Zug AG Charnière avec centre de rotation mobile
IT251283Y1 (it) * 2000-03-06 2003-11-19 Electrolux Zanussi Elettrodome Lavastoviglie con porta di caricamento frontale

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03039322A1 *

Also Published As

Publication number Publication date
ES2238619T3 (es) 2005-09-01
EP1443846B1 (fr) 2005-04-13
WO2003039322A1 (fr) 2003-05-15
ITBO20010674A1 (it) 2003-05-06
DE60203732D1 (de) 2005-05-19
DE60203732T2 (de) 2005-09-01

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